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TABLE OF CONTENTS <br />TITLE SHEET <br />LETTER OF TRANSMITTAL <br />CERTIFICATION SHEET <br />TABLE OF CONTENTS <br />EXECUTIVE SUMMARY......................................................................................................1 <br />1. INTRODUCTION........................................................................................................ 2 <br />1.1 Purpose of Study................................................................................................ 2 <br />1.1 Effects of Iron.....................................................................................................2 <br />1.2 Effects of Manganese........................................................................................ 2 <br />1.3 Effects of Ammonia............................................................................................ 3 <br />1.4 Goals and Objectives......................................................................................... 3 <br />2. RAW WATER QUALITY AND TREATMENT GOALS ............................................... 4 <br />2.1 City -Wide Raw Water Quality.............................................................................4 <br />2.2 Well 6 Raw Water Quality and Treatment Objectives.........................................4 <br />3. PILOT EQUIPMENT AND SETUP............................................................................. 5 <br />4. OPERATIONAL OVERVIEW..................................................................................... 6 <br />5. RESULTS AND DISCUSSION................................................................................... 7 <br />5.1 <br />Aeration Requirements...................................................................................... 7 <br />5.2 <br />Iron Removal......................................................................................................8 <br />5.3 <br />Manganese Removal......................................................................................... <br />8 <br />5.4 <br />Ammonia Removal............................................................................................. <br />9 <br />5.5 <br />Nutrient Requirements..................................................................................... <br />10 <br />5.6 <br />Miscellaneous Water Quality Parameters........................................................ <br />11 <br />5.7 <br />Filter Backwash Frequency.............................................................................. <br />11 <br />5.8 <br />Filter Performance Testing............................................................................... <br />13 <br />5.8.1 Backwash Recovery Test...................................................................... <br />13 <br />5.8.2 Shutdown Recovery Test...................................................................... <br />13 <br />6. FINANCIAL ANALYSIS...........................................................................................15 <br />7. CONCLUSIONS AND RECOMMENDATION...........................................................16 <br />7.1 Performance Takeaways.................................................................................. 16 <br />7.2 Financial Takeaways........................................................................................ 16 <br />7.3 Recommendation............................................................................................. 16 <br />Water Treatment Pilot Study Report <br />Biological Removal of Ammonia, Iron and Manganese at Well House No. 6 <br />City of Lino Lakes, MN <br />WSB Project No. 018601-000 <br />